/// <summary>
/// Crawls the node structure in a depth-first search of the item.
/// </summary>
private TreeViewDataItem TraverseTree(TreeViewDataItem node, DataItem item)
{
TreeViewDataItem result = null;
//Checks if root node matches the given item.
if (node == null)
{
return(null);
}
else if (node._data == item)
{
return(node);
}
//Iterates through each node recursively.
for (int i = 0; i < node.Items.Count; i++)
{
result = TraverseTree(
(TreeViewDataItem)node.Items[i],
item);
if (result != null)
{
return(result);
}
}
return(result);
}
/// <summary>
/// Two treeviewdataitems are equal if the underlying data's
/// guids are equal.
/// </summary>
public bool Equals(TreeViewDataItem other)
{
if (other == null)
{
return(false);
}
return(_data.guid == other._data.guid);
}
/// <summary>
/// Creates a new treeview item with underlying data.
/// </summary>
/// <param name="item">
/// The data to provide.
/// </param>
public TreeViewDataItem(DataItem item)
: base()
{
this._data = item;
_parentView = null;
if (item != null)
{
Header = (string)item.GetData("name");
}
else
{
Header = String.Empty;
}
}
/// <summary>
/// Sets the parent item of this item so traversal is easier later.
/// </summary>
/// <param name="item">
/// The containing parent of this item.
/// </param>
public void SetParent(TreeViewDataItem item)
{
_parentView = item;
}
